Lamp-burner.



F. DOW.

LAMP BURNER.

APPLIOATION FILED AUG. 31, 1914.

Patented Dec. 15

1HE NORRIS PETERS coy, PHOTO-LITHO. WASHINGTON, D. C.

ITED STATES ATENT QFFICE.

FLOYD IDOXV, OF YVYANET, ILLINOIS,.ASSIGNOR OF ONE-THIRD TO ELBRIDGEB. STEVENS AND ONE-THIRD T0 ADELBERT HAIVIRICK, OF WYANET, ILLINOIS.

LAMP-BURNER.

Specification of Letters Patent.

a are ileum-'23. t. as

Application filed August 31, 1914. Serial No. 8595358.

air to support combustion, the tube regis tering witha central slot in the top of a cone fitting over the wick-tube and covering the perforations in the diaphragm.

The primary object of my invention is to provide means for conducting vapor-carrying air through the burner from the oil in the lamp-bowl to opposite sides of the flame to enhance the combustion, and this in a manner to balance the supply of such vapors to the flame at its opposite sides and with out impairing the desirable balancing of the air-supply thereto through the perforated diaphragm.

In the accompanying drawing, Figure 1 is a view in vertical sectional elevation of a lamp-burner embodying my improvements; Fig. 2 is a section on line 2, Fig. 1; Fig. 3 is a bottom planview of the burner as shown in Fig.1; Fig. 4 is a view of one of the vaporducts as employed in the burner illustrated in the preceding figures, and Fig. 5 is a view like that presented in Fig. 2 but illustrating a modified construction.

Referring particularlyv to Figs. 1 to 1, inclusive, a wick-tube 6 extends through the externally threaded burner-base 7 to register with the slot in the cone 8. This base carries a profusely perforated disk 9 provided with an annular shoulder at 10 and another at 11, in the vertical wall between which latter and the chimney-seat 12 are provided relatively large perforations 13 about the wall for the admission of air into the cone to supplement the air entering therein through the smaller perforations in the disk. Usual spring fingers 14: may be provided for holding a lamp-chimney (not shown) on its seat. The cone is shown to be hinged at 15 to the disk and to carry a spring tongue 16 diametrically opposite the hinge to enter a slot 17 for securing the cone releasably in its operative position.

Toothed wheels 18, of which three are shown in Fig. 2 on a stem .19 journaled in the.

burner-base to extend transversely through it along one side of the wick-tube, work through an opening in a side of the tube Patented Dec. 15, 1914 1 for engaging the wick to raise and lower it by turning the stem.

As thus far described, the construction presents nofeatures of novelty.

On opposite sides of the burner-tube extend parallel therewith and vertically through the base and through the disk 9, flat tubular ducts 20, 20, of lesser width than the tube 6. These ducts are spaced equidistant from the respective sides of the wick-tube, between which and each duct is a row of the relatively-small perforations in the disk. Both ducts are shown to have their inner walls bent between their lateral edges against theinner faces of their outer render the passages through them of uni-,

form size thereby to insure balancing the flow of fumes or vapors through them to the opposite sides of the burning wick.

By the foregoing construction the perforations in the top of the disk 9 are uniformly disposed entirely about the wicktuhe, thereby insuring a uniform feed of combustion-supporting air to opposite sides and ends of the wick to produce even burningthereof and a wide and symmetrical flame. Heat from the burning wick conducted to the under side of the burner effects decomposition of the hydrocarbon oil in the lamp-bowl, generating fumes. These fumes pass through the ducts into the cone, which directs them to the flame, enriching the latter and enhancing the combustion of the fuel, with the advantages of augmenting its illuminating power and minimizing the odor of the burning lamp. By providing these similar ducts on opposite sides and in close proximity to the wick-tube, the feed of the fumes they carry is rendered uniform to opposite sides of the flame, thereby preventing uneven burning of the wick and causing a thorough and intimate mixture of the fumes with the body of the flame, thus materially enhancing the advantages referred to.' Moreover, the spaces between the opposite sides of the wick-tubes and the ducts 2O enable air from the disk-perforations at both sides of each duct to mix with the fumes discharging from it andthus better prepare the mixture for combustion. This produces rapid and complete consumption of the inflammable and explosive gases and results in a bright flame giving a powerful and white light without smoke and disagreeable odor; and it enables the wick to require illustration.

be turned much higher than would be the case were the combustion of these gases less rapid and complete. Further advantages of the fume-ducts are due to the free a duplication of the wick-tube ,6 and of the wheel-carrying stem 19; and three of the ducts are provided to bring each wick-tube between two of them, which latter do not intthis' case require to be crimped for producing the recesses 21, since in their positions the central toothed wheels clear them. Of course, in this modified construction, the cone contains two slots, one for each wick, but that feature is too obvious to In Figs. 1 and 3 a hooked finger 22 is shown as an extension depending from one side of the wick-tube. This afiords means for holding the burner on the lamp-body when the burner is unscrewed and turned to one side to permit insertion into the mouth of the lamp-body of the nozzle of a Copies of this patent may be obtained for t me can or of a funnel for filling the lamp. When the burner is thus turned to one side, the hook engages the collar-portion of the lamp-body and holds the burner in conveniently accessible position from which to re-screw it into place; and it' avoids the necessity 1 of holding the burner one hand while performing the filling operation with the other, or of withdrawing the wick entirely with the burner and laying them down with resultant liability ,of the oil in the wick soiling the surface on which it is laid, and the liability to soil the hands of the person filling the lamp by contact with the wick. For packing the burner for shipment, the finger 22 maybe bent to extend across the bottom of the base 6, as indicated in Fig.1.

What I claim as new and desire tosecure by Letters Patent is p ,1. In a lamp-burner, the combination of a base, a profusely-perforated disk secured to the base, a wick-tube extending through the base and disk, and fume-ducts leading through said base and disk at opposite sides of the wick-tube and spaced from the latter to extend along a line of perforations in the disk between said tube and each duct. 2. In a lamp-burner, the combination of a base, a profusely-perforated disk, secured to the base, a wick-tube extending through the base and disk, a s l t ted cone for covering the wick-tube, .means'for raising and lowering the wick comprising arotatable stem carrying atoothed wheel projecting through a side of said tube, and fume-ducts leadingthrough said base and diskat opposite sides of the wick-tube and'spaced from the latter to extend along a li n e of perforations in the disk betvv'qeii Said tube and ea h due on f sa d11 =tShaving a r c formed in its inner wall to receive said wheel. .c v FLOYD DOW. In presence of Epnnrnen B. Srnvnns, BERO HAMIRIGK,

Washington, D. ,0.

five cents each, by addressing the Commissioner of ratents, 

